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Irruputuncu volcano

stratovolcano 5163 m / 16,939 ft
Northern Chile, Bolivia and Argentina, South America, -20.73°S / -68.55°W
Current status: dormant (1 out of 5) | Reports
Irruputuncu volcano books
Typical eruption style: explosive/effusive
Irruputuncu volcano eruptions: 1995
TimeMag. / DepthDistanceLocation
Fri, 21 Sep
Fri, 21 Sep 07:23 UTCM 2.8 / 105.5 km43 km29 km al O de Mina Collahuasi
Sun, 9 Sep
Sun, 9 Sep 20:15 UTCM 3.3 / 108.2 km39 km26 km al O de Mina Collahuasi
Thu, 6 Sep
Thu, 6 Sep 20:42 UTCM 3.4 / 102.2 km43 km44 km al NO de Mina Collahuasi
Tue, 28 Aug
Tue, 28 Aug 19:21 UTCM 2.8 / 107.4 km42 km38 km al NO de Mina Collahuasi
Fri, 24 Aug
Fri, 24 Aug 12:08 UTCM 3.2 / 102.1 km37 km28 km al O de Mina Collahuasi
View all recent quakes
Irruputuncu is a small stratovolcano in northern Chile on the border with Bolivia. It contains 2 summit craters. A small summit lava dome and fumarolic activity are found at the southern crater which measures about 300 m in diameter.

Background:

Irruputuncu is the youngest and most southerly of a NE-SW-trending chain of volcanoes. It was was constructed within the collapse scarp left by a debris avalanche which removed part of the SW flank less than 10,000 years ago.
Later eruptions have filled much of this scarp and produced thick, viscous lava flows on the western flank.

1995 eruption
A small phreatic eruption occurred on 26 November 1995 and ejected dark ash plumes above the summit. This was the first confirmed historic activity of Irruputuncu volcano.

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